- A
Change the output to use a partition scheme
Why wrong: Partitioning may help but scaling is more direct
- B
Reduce the window duration in the query
Why wrong: Would reduce accuracy, not necessarily throughput
- C
Increase the number of Streaming Units (SUs)
Scaling out increases processing capacity
- D
Decrease the event ordering tolerance
Why wrong: Might reduce throughput
Question 554 of 851
DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
This DP-203 practice question tests your understanding of secure, monitor, and optimize data storage and data processing. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are monitoring Azure Stream Analytics job performance. The job is falling behind in processing real-time data. You notice that the SU (Streaming Unit) utilization is consistently at 90% or higher. What is the most appropriate action to improve throughput?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the number of Streaming Units (SUs)
When SU utilization is consistently at 90% or higher, the job is resource-constrained, which leads to backpressure and falling behind. The most direct way to improve throughput is to increase the number of Streaming Units (SUs), as this adds more compute capacity. Option A (changing output to use a partition scheme) can improve performance in some cases but is not the immediate step and may not resolve high SU utilization. Option B (reducing window duration) can cause data loss or inaccurate results, and does not address the resource bottleneck. Option D (decreasing event ordering tolerance) also risks data loss and is not a throughput improvement measure.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the output to use a partition scheme
Why it's wrong here
Partitioning may help but scaling is more direct
- ✗
Reduce the window duration in the query
Why it's wrong here
Would reduce accuracy, not necessarily throughput
- ✓
Increase the number of Streaming Units (SUs)
Why this is correct
Scaling out increases processing capacity
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Decrease the event ordering tolerance
Why it's wrong here
Might reduce throughput
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Visual reference
What to study next
Got this wrong? Here's your next step.
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this DP-203 question test?
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the number of Streaming Units (SUs) — When SU utilization is consistently at 90% or higher, the job is resource-constrained, which leads to backpressure and falling behind. The most direct way to improve throughput is to increase the number of Streaming Units (SUs), as this adds more compute capacity. Option A (changing output to use a partition scheme) can improve performance in some cases but is not the immediate step and may not resolve high SU utilization. Option B (reducing window duration) can cause data loss or inaccurate results, and does not address the resource bottleneck. Option D (decreasing event ordering tolerance) also risks data loss and is not a throughput improvement measure.
What should I do if I get this DP-203 question wrong?
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 21, 2026
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